Add a physical rack to the topology

[felipedf]

This PR is able to:

• add a Rack icon into topology graph

Depends on: ManageIQ/manageiq#16853 [ Merged ]

[skateman]

@miq-bot assign @skateman

[miq-bot]

Checked commit felipedf@2ecde3a with ruby 2.3.3, rubocop 0.52.0, haml-lint 0.20.0, and yamllint 1.10.0
3 files checked, 0 offenses detected
Everything looks fine. 🍰

[skateman]

Could you please explain this add_to_graph thing you're adding a little bit? I'm trying to understand why do we need it. Thanks.

[felipedf]

Alright, the idea was to keep the DAG simple, so a parent can have many children but a child can only have a parent, this is regarding a physical infrastructure.

Was a requirement that once i try to access a a provider's physical servers provider.physical_servers
it would return me all physical servers in its infrastructure, even thought those servers are inside chassis inside a rack. That said, the topology wouldn't be pretty

122 children = entity.send(method) if entity.respond_to?(method)
This line inside topology_service.rb would be responsible execute something like provider.physical_server

[felipedf]

ManageIQ/manageiq#16853 was merged

[skateman]

Nice job 👍